Improvement in milk-cooler



'lower box, will hold about three quarts each.

@aient til-flirt.;

AsAPH THOMPSON,

or. HUDsorLvo-Hio.

Letters Patent No. 89,900, dated May l1, 1869.

` IMPROVEMENT IN MILK-GOOLER.

` i The Schedule referred tvo in these Letters Patent and making part of the same.

Tocll whom 7iMac/.1; concern.-

Beit known that I, AskPH THOMPSON, of the town Yof Hudson, in the county of Summit, and State of Ohio, have invented a new and useful Milk-Cooler, for cooling milk and other liquids, called A. Thompsons Buckeye Milk-Cooler for Dairies; and I hereby def clare thahthe following is'a full and exact description of the'construction-and operation of the same, reference being had to the annexed drawings, `and thelet# ters ofreference marked thereon, making a part of this specification', in whichi Y- Figure I represents the upper portion of said Hcooler detached,`the front of the ligure being the inner or lower side thereof. Y

In said figure- V M is the metallic base of said part, andis a little smaller in each of its dimensions than the said part or upper box, of which it is the base.

Said upper part is a box,-hollow throughout, and water-tight. 1- y P P is a row of perforations, from below upwards to the cavity within the box. y

T is the lower orifice of a tube, which is water-tight, and extends entirely throughth'e upper box. A

D is aldepression in thebox and its .metallic base, for receiving and holding the milk as it is poured 4into the tube T; and is diffusing itself over M, and, with the corresponding depression at the other end of the This box is, in the figure, represented as' ystanding uponitsside. Y 1

Figure II. represents the lower portion or box.

Y M', its metallicsurface, similar to M.

R is theiIndia-rubber packing, extending entirely around the outeredge of the box, and is of Vsuch di'- mensions as to make asuliiciently water-tight packing.

P P' isa row of perforations, made from the'upper face Of this box downward, through the packing and upper surface of this box to the cavity within, and corresponds exactly, in size, form, and position, with the perforations P P, and when the `boxes are put in position for use, constitutes, with VP P, water-tight tubes, through which the water passes froml the cavity injthe upper fbox ,down into 4the corresponding cavity in the lower box.

K K K K are rows of knobs. upon M', of a height equal to thethickness of the packing. g

The object of these isy to keep these metallic surfaces apart, but close together.

D is the depression in M', to receive and hold the cooled milk for discharge through the faucetF.

Figure IIII represents the rubber packing. R, detached, the thickness of which should be about oneeighth of an inch, which is, of course, the same as the thickness ofthe stratum -of milk to be cooled- P' P are the perforations through the same, and

` are same as I" P in Fig. H. Y

Figure IV represents a section of the milkfcooler,

made lengthwise, and perpendicular' to its base, in y which W is the water-cavity in the upper box, and XV' the samein the 'lowert f D and D', the depressions in the metallic surfaces. M, the milk-cavity, between said surfaces. K K, theknobs, which keep the surfaces apart and this cavity openr Figure slightly inclined, the end having the faucets being a littlethe lower. 'A is the tunnel, into which the milk is poured.

foration made through the upper surface of the upper box. to the cavity Within. F' is the water-faucet, for discharge ofthe water.`

F is` the milk-faucet, for discharge ofthe milk.

The two boxes are fastened together by the hooks. H H, Sto., or' by clamps with thumb-screws, or their equivalents.

The operation of this milk-cooler is as follows:

The cooling-'liquid is put into the reservoir B, which is at the lower end of the cooler, and passes thence into thel cavity of the upper box, lls it, flows through II, into the cavity of the lower box, and the faucet FT being closed,v accumulates. in the lower end of the lower entirely full. Y Y

Then the faucet F' is `turned slightly, and the water begins to flow, care being taken tohave the outflow of water through F' so slow asto keep all said cavities at all times full.

-Thus the two metallic surfaces are kept at all times in full contact with the flowing water, and of course as cold as that Water.

M `After the cooler is cooled thus, the milk is poured into the funnel A. Y i

The milk-faucet F is kept closed until the milkcavity is filled, then this faucet is turned, the samev care being taken as to the flow of milkl as above stated as to flow of water.

' The water and milk are kept flowing at the same -each side of it, and is thereby quickly and thoroughly cooled, the water in the cavities of the boxes being kept from becoming warm by constantly flowing.

When the cooler is not in use, it` can easily be taken Aapart by loosening the hooks or clasps, removing the f with faucets, reservoirs, and packing, for the purpose and substantially as herein set forth.

3. The mode of cooling milk and otherliquids, by

two metallic'surfaces as to keep the cavity therefor at substantially as set forth. y l ,Y

. ASAPH 'JJHOlllUSOlL` Witnesses:

H. B. FOSTER,

V Vrepresents the cooler in position for use,

H. L. Deacon.l

This has a tubeat the bottom, which .enters a perthe perforations P P and P P', shown in Figs. I and cavityr and'upper cavity and perforations, until all are time, and thus a thin stratum of milk is exposed to the full action of the two metallic surfaces, one on upper box, and the milk-cavity easily cleaned andA What I claim as my invention, and desire to secure causing a thin stratum thereof to soflow between all times full of the liquid to be cooled, while the me- 

